Finite Element Models of 3D Woven Composites Based on Numerically Generated Micro-Geometry of Reinforcement

摘要

In this paper, we present a procedure to develop realistic finite element modelsrnof unit cells of 3D woven composites based on the as-woven reinforcement geometryrnobtained by the textile modeling software. We illustrate our approach by considering arncarbon/epoxy woven composite with a layer-to-layer orthogonal reinforcement andrndescribe all steps of the model development. The finite element mesh of the unit cell isrndeveloped to incorporate periodic boundary conditions. The procedure has beenrnsuccessfully applied to predict the effective elastic properties of the composite.